Type-writing machine.



B. C. S'HOKNEY,

TYPE WRITING MACHINE,

APPLICATION FILED MM4,1909.

atented June 2, i914.

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B''ELINHM C. STICKNEW', GIE* ELIBETH,

TYPEWRITER MPANY, ULF NEW 'FRK, 1l. Y., A.

lll tllillltllillill l rtrn-Wnirno trentaine.

Specification ot llettere. Patent.

Patented tune t2, i" little Application tiled May 1909. A@ferial lilo.1193,908.

To all whom 'it may concern.:

lle it known that l, BURNHA'M C. STICK- Nnr, e citizen ot the UnitedStates, residing in Elizabeth, in the county ol Union and State of NewJersey, have invented certain new and useful linprovements inTypelWriting Machines, of which the following is e specification.

This invention relates to the linospacinpg mechanism of typervritingmachines, and particularly to ineens for eonvenientlgI Writing exponentsand characters above end below the line of Writinga The platen isusually mounted for rotetion and is provided with a notched linespaceWheel, in Which plays a spi.ing:g-}}ressed detent or check. According tothe present invention, a handle controls seid detent or check., apivotal connection being,I provided between the handle and the check,whereby the handle may move the elieelr, together with the wheel, ineither direction from initial position,` tor about halt' a line elspring-pressed cani is preferably provided for returning the handle andcheclr to nor mel positions; end stops are also provided for limitingthe stroke in each direction to less than o linespacea till lill

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ln. the accompanying drawings, Figure l. is a sectional end elevationoi: the platen trarne and line-spacing Wheel with inv int provenienteapplied thereto; the 'parte he ing shown in normal positions. 5?; io osimilar view, showing the platen turned to the right for less than aline rlistence, to permit a charecte, Written shove t line ot Writing5it is e similar vr showing;l the platen turned to the lett Iter esimilar distance, to permit a character to be Written below the line oiEWritino. lll all is a perspective View ola pivotetlj eatin arno. forcoperation with the platen adj'listing;I lever. Fig. 5 is a front viewoli the platen and its connected parte, the lino-space Wheel. beingpartly broken away.

.lypes l strike upon the front ot a cylindrical platen 2, which ismounted by means ot an axle 3 in the ends fl of a platen tre/nie 5.llixed on the axle outside of the platen trarne is a line space Wheelo.. ein arm, 'l' carries at its lower end a roll 8, which is pressed byo sprint` 9 against the teeth ol the line-spoce wheel, to check ordetain the lotter against accidental rotation. Said detent 'i' has alarge hub, whereby it is pivoteol upon a ivf 'et 10, which is providedupon a lever 12 iiaviin; s, handle l, seid lever pivoted upon a stud 14projecting from theplaten traine enel. The wrist 1Y0 is eccentric to thestud le, so that by turning the lever l2 baclmvardly and forwardly, theWrist and wardly, as et llig. 2 or Fig. 8. lThe bore for the stud letpassesthrough the Wrist l0; and the spring 9 is coiled around the hubet' the detent and bears et ,one end against a pin l5 projecting fromthe 'pleitenframe; the other end bearing Vegg-einst the detent itself.it nut or other keeper 16 inetA loe provided on the stuo Eel to retainthe parts. llloe lever l2 also has an arm 17, having at its end a rollerstud 1S to engage a lt-notch termed on a plate or erin which ispiv# otodet 52o upon a bracket 2l` secured to the platen trarne. ends fl. sprinpYQ2, coiled erounfl the stud 2G and bearing; at one end ogoinst a linedpin 23 and atl the other end against a pin on the erm 19, causes the ofthe il-notch .in said arm 19; this being the normal position of theparts,as et Fig, l.

lill hen the handle 13 is swung beclrwordly, the roller stud t8 rollsdown one cam edge .l of the lll-notch. Upon relieving the handle 13troni, pressure, a spring' 22 Lliorccs the erin 19 to the right, theearn edge 25 forcing the arni 17 to rise until the stud lci rests in thebottom ot the notch; Thus the ole-tent "l is thrown np and the platen isthere by moved from the 'position at liip. l. to that at llil the pietenturn d downwardly) toi' the distance between the horizont-el arial planeot" the pieten to the point indicated at 2i', 2, thus *een initting acharacter to he Written a little lease ofthe handle 13, the parte arereturned by the spring' 2i?, to normal positions.

When the handle pulled forwardly to the position at Fin'. 8., the rollerstud 25 rides up along a 1,ein edge lll 'forming the other side ot' theil-notch, and the eccentric l0 svi/ings downwardly and forces down thetletent 7, together with the line-space wheel and pieten, so that theti'ontof' the latter is turned upwardly from 2G to 2l, to permit nchrectei' to be written below the line of writing. Upon release of thehandle 13, the spring Q2 again returns the parts to initial position. ltwill be seen that the handle 13 cletent l may be carried upwardly ordownroller stufll to be. held firmly to the bottom` titi @lli

above the line of Writing. Upon the res reo lll@

is constantly connected to the platen, and that by a single stroke itmay advance or retract the platen.

The cam Q5 terminates in a shoulder or stop 29, and the cam 28terminates in a stop 30, 'the stops limiting the movement of theinet-space wheel in each direction from normal ifo less than thedistance from one tooth to the next of the line-space wheel.

The invention is not limited to the employment of the spring forretuining the platen to initial position from the position at Fig. 2 orat Fig. 3, or for holding the parts in their normal positions.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a platen and a linespace wheel., of a lever having an eccentric wrist, a detent pivoted onsaid wrist and pressed by a spring against the teeth of said line-spacewheel, said lever provided with ahandle and movable in oppositedirections from normal position, and means to hold said lever in normalposition.

2. In a typewriting machine, the combination with a platen and aline-space wheel, of a lever having an eccentric wrist, a detent pivotedon said wrist and pressed by a spring against the teeth of saidline-space wheel,"'said lever provided with a handle and movable inopposite directions from normal position, means to hold said lever innormal position, and means to determine the length of stroke of saidlever in opposite directions away from normal position.

3. In a typewriting machine, the combination with a platen, a platenframe and a line-space wheel, of a lever pivoted upon the platen frameand having a handle and an arm, and also provided withan eccentricwrist, a detent pivoted on said wrist and pressed by a spring againstthe teeth of said line-space wheel, a pivoted cam-plate or detent toengage a stud provided upon said arm, and a spring to enable the camplate to cooperate with said arm to return the latter and said detent toa normal midway positlon.

4. In a typewriting machine, the combination with a platen, a platenframe and a line-space wheel, of a lever pivoted upon the platen frameand having a handle' and an arm, and also provided with an eccentricwrist, a detent pivoted on said wrist and pressed by a spring againstthe teeth of said line-space wheel, a pivoted cam-plate or detent toengage a wrist provided upon said arm, a spring to enable the cam plateto cooperate with said arm to return the latter and said detent to anormal midway position, and stops to limit the strokes of said arm awayfrom normal position.

5. The combination of a revoluble platen, a dci/ice for determining theextent of linespacing movement thereof, a nger-piece operativelyconnected to said device for shifting said device and with it the plateneither forwardly or backwardly less than a line-space in eitherdirection from a central normal position, and spring actuated means forreturning said device to initial position together with the platen.

6. In a typewriting machine, the. combination with a platen and aline-space wheel, of a detent pressed by a spring against the teeth ofsaid wheel, a member having a finger-piece and to which said detentl ispivoted, and means to hold said member and detent in normal positions,said member movable in opposite directions from normal position to shiftsaid detent and rotate said wheel in opposite directions to bring the.printing line either above or below its normal position.

7. In a typewriting machine, the combination with a platen and aline-space wheel, of a spring-pressed detent constantly engaging saidline-space wheel, said detent mounted to yield to permit rotation of theplaten independently thereof, a handle, means for enabling said handleto move said detent together with said line-space wheel forwardly andbackwardly, stops to limit the strokes oit the detent and linespaeewheel to less than a line-space in either direction from a centralnormal position, and means mechanically determining the normal centralposition of the detent. l

8. rIhe combination with a platen, of a toothed wheel connected to theplaten, a lever pivoted eocentrically of the platen, said lever beingcapable only of turning movement about its pivot, and being movable onsaid pivot only in either one of two directions fromA normal centralposition, means operated by such movement of the lever to turn the saidwheel and platen in the direction of movement of the lever, and means toreturn the lever to normal central position and to return said wheel andplaten with said lever and hold said parts in returned position.

9. The combination with a platen, of a toothed line-space wheelconnected thereto, a linger piece, means to hold said finger piece innormal position, said finger piece mounted for movement in a singleplane only, and movable in said plane either `forwardly or backwardlyfrom normal position, and means operated by such movement of the fingerpiece to 'turn the wheel and platen either forwardly or backwardly todisplace the printing line on the platen either above or below itsnormal position, and to return the said wheel and platen to restore theprinting line to normal position when the lingerpiece is returned tonormal position.

10. The combination with a platen, of a toothed linespace wheelconnected thereto,

, noname a finger piece, means to hold said finger piece in normalposition, said nger piece mounted for movement in a single plane only,and movable in said plane either forwardly or baekwardly from normalposition, means operated by such movement of the linger piece to turnthe Wheel and platen either for- Wardly or baekwardly to displace theprinting line on the platen either above or below its normal position,and means to return said linger piece to normal position together withsaid wheel and platen.

11. The combination with a platen, of a toothed linerspaee Wheelconnected thereto9 a linger piede, said finger piece mounted for andmovable in or baclivardly pressure applied means to hold said fromnormal position by thereto, normal direction, said Wheel to be movedthereby to rotate the platen platen, of a toothed line-space Wheelconnected thereto,

a finger piece, said finger piece mounted for movement inra sin lleplane, and movable in said plane either forwardly or back- Wardly fromnormal position b i pressure applied thereto, means to hold said .iingerpiece in normal position and to return it to normal position after ithas been moved in either direction, a spring held detent engaging saidWheel and connected to said linger piece to be moved thereby to rotatethe platen either forwardly or baekwardly to displace the printing` lineeither above or below its normal position, and means to return thefinger piece to normal position together with the Wheel and platen.

BURN HAM C. STICKNEY. Witnesses Jox-IN O. SnirnRT, K. Fnaivnronr.

